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perf sched: Move thread::shortname to thread_runtime

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The thread::shortname only used by sched command, so move it to sched
private structure.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1520307457-23668-2-git-send-email-changbin.du@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Changbin Du 2018-03-06 11:37:36 +08:00 committed by Arnaldo Carvalho de Melo
parent 923a0fb332
commit 8640da9f4f
2 changed files with 55 additions and 41 deletions
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95
tools/perf/builtin-sched.c
View File

@ -254,6 +254,8 @@ struct thread_runtime {
u64 total_delay_time;
int last_state;
char shortname[3];
u64 migrations;
};
@ -897,6 +899,37 @@ struct sort_dimension {
struct list_head list;
};
/*
* handle runtime stats saved per thread
*/
static struct thread_runtime *thread__init_runtime(struct thread *thread)
{
struct thread_runtime *r;
r = zalloc(sizeof(struct thread_runtime));
if (!r)
return NULL;
init_stats(&r->run_stats);
thread__set_priv(thread, r);
return r;
}
static struct thread_runtime *thread__get_runtime(struct thread *thread)
{
struct thread_runtime *tr;
tr = thread__priv(thread);
if (tr == NULL) {
tr = thread__init_runtime(thread);
if (tr == NULL)
pr_debug("Failed to malloc memory for runtime data.\n");
}
return tr;
}
static int
thread_lat_cmp(struct list_head *list, struct work_atoms *l, struct work_atoms *r)
{
@ -1480,6 +1513,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
{
const u32 next_pid = perf_evsel__intval(evsel, sample, "next_pid");
struct thread *sched_in;
struct thread_runtime *tr;
int new_shortname;
u64 timestamp0, timestamp = sample->time;
s64 delta;
@ -1519,22 +1553,28 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
if (sched_in == NULL)
return -1;
tr = thread__get_runtime(sched_in);
if (tr == NULL) {
thread__put(sched_in);
return -1;
}
sched->curr_thread[this_cpu] = thread__get(sched_in);
printf(" ");
new_shortname = 0;
if (!sched_in->shortname[0]) {
if (!tr->shortname[0]) {
if (!strcmp(thread__comm_str(sched_in), "swapper")) {
/*
* Don't allocate a letter-number for swapper:0
* as a shortname. Instead, we use '.' for it.
*/
sched_in->shortname[0] = '.';
sched_in->shortname[1] = ' ';
tr->shortname[0] = '.';
tr->shortname[1] = ' ';
} else {
sched_in->shortname[0] = sched->next_shortname1;
sched_in->shortname[1] = sched->next_shortname2;
tr->shortname[0] = sched->next_shortname1;
tr->shortname[1] = sched->next_shortname2;
if (sched->next_shortname1 < 'Z') {
sched->next_shortname1++;
@ -1552,6 +1592,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
for (i = 0; i < cpus_nr; i++) {
int cpu = sched->map.comp ? sched->map.comp_cpus[i] : i;
struct thread *curr_thread = sched->curr_thread[cpu];
struct thread_runtime *curr_tr;
const char *pid_color = color;
const char *cpu_color = color;
@ -1569,9 +1610,14 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
else
color_fprintf(stdout, cpu_color, "*");
if (sched->curr_thread[cpu])
color_fprintf(stdout, pid_color, "%2s ", sched->curr_thread[cpu]->shortname);
else
if (sched->curr_thread[cpu]) {
curr_tr = thread__get_runtime(sched->curr_thread[cpu]);
if (curr_tr == NULL) {
thread__put(sched_in);
return -1;
}
color_fprintf(stdout, pid_color, "%2s ", curr_tr->shortname);
} else
color_fprintf(stdout, color, " ");
}
@ -1587,7 +1633,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
pid_color = COLOR_PIDS;
color_fprintf(stdout, pid_color, "%s => %s:%d",
sched_in->shortname, thread__comm_str(sched_in), sched_in->tid);
tr->shortname, thread__comm_str(sched_in), sched_in->tid);
}
if (sched->map.comp && new_cpu)
@ -2200,37 +2246,6 @@ static void save_idle_callchain(struct idle_thread_runtime *itr,
callchain_cursor__copy(&itr->cursor, &callchain_cursor);
}
/*
* handle runtime stats saved per thread
*/
static struct thread_runtime *thread__init_runtime(struct thread *thread)
{
struct thread_runtime *r;
r = zalloc(sizeof(struct thread_runtime));
if (!r)
return NULL;
init_stats(&r->run_stats);
thread__set_priv(thread, r);
return r;
}
static struct thread_runtime *thread__get_runtime(struct thread *thread)
{
struct thread_runtime *tr;
tr = thread__priv(thread);
if (tr == NULL) {
tr = thread__init_runtime(thread);
if (tr == NULL)
pr_debug("Failed to malloc memory for runtime data.\n");
}
return tr;
}
static struct thread *timehist_get_thread(struct perf_sched *sched,
struct perf_sample *sample,
struct machine *machine,

1
tools/perf/util/thread.h
View File

@ -26,7 +26,6 @@ struct thread {
pid_t ppid;
int cpu;
refcount_t refcnt;
char shortname[3];
bool comm_set;
int comm_len;
bool dead; /* if set thread has exited */